3x=(x+12)

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Solution for 3x=(x+12) equation: 



3x=(x+12)

We move all terms to the left:

3x-((x+12))=0



We calculate terms in parentheses: -((x+12)), so:

(x+12)

We get rid of parentheses

x+12

Back to the equation:

-(x+12)



We get rid of parentheses

3x-x-12=0

We add all the numbers together, and all the variables

2x-12=0

We move all terms containing x to the left, all other terms to the right

2x=12

x=12/2

x=6

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